diff --git a/CMakeLists.txt b/CMakeLists.txt
index dc7a11a..e905de2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 3.15)
 project(testFFT)
 
+file(GLOB test CONFIGURE_DEPENDS "test/*.cpp")
+
 find_package(Catch2 REQUIRED)
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
@@ -8,6 +10,7 @@ if ( CMAKE_COMPILER_IS_GNUCC )
     set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -Wall -Wextra")
 endif()
 
-add_executable(${PROJECT_NAME} test/testFFT.cpp test/testIIR.cpp)
+add_executable(${PROJECT_NAME} ${test})
+add_compile_definitions(CATCH_CONFIG_MAIN)
 include_directories(include)
 target_link_libraries(${PROJECT_NAME} Catch2::Catch2WithMain)
diff --git a/test/testFFT.cpp b/test/testFFT.cpp
index 6aadfb4..2081765 100644
--- a/test/testFFT.cpp
+++ b/test/testFFT.cpp
@@ -1,5 +1,4 @@
 
-#define CATCH_CONFIG_MAIN
 #include "catch2/catch_all.hpp"
 #include "sdsp/fft.h"